Took all the girls out of the greenhouse today for a straight shot of water and molasses. This was no easy task due to their size and weight. Anyway, I ended up testing the PH going in and the PH coming out. Without any adjustment:

PH in = 7.3
PH out = 4.5

The plants are about 3 weeks from harvest, and showing some magnesium deficiency. Other than that, they are in good health and budding vigorously. I thought that I would get some PH Up and raise the PH going in to 8.3. What do you think? Tinker or just let it be?